Codex Seraphinianus, originally published in 1981, is an illustrated encyclopedia of an imaginary world, created by the Italian artist, architect and industrial designer Luigi Serafini during thirty months, from 1976 to 1978.[1] The book is approximately 360 pages long (depending on edition), and written in a strange, generally unintelligible alphabet.

Originally published in Italy, the book has since been released in a number of different countries.[2]

The Dunning–Kruger effect is a cognitive bias in which unskilled individuals suffer from illusory superiority, mistakenly rating their ability much higher than average. This bias is attributed to a metacognitive inability of the unskilled to recognize their mistakes.

Actual competence may weaken self-confidence, as competent individuals may falsely assume that others have an equivalent understanding. David Dunning and Justin Kruger of Cornell University conclude, "the miscalibration of the incompetent stems from an error about the self, whereas the miscalibration of the highly competent stems from an error about others".